We collaborate with global customers in diversified application. From wind energy in the North Sea to mining machinery crossing the Sahara, we bring to life know-how and innovation, providing true marketplace advantage.

To this day, VIIPLUS’s founding vision of making the world move more efficiently and reliably remains at the core of our business.

As the china supplier of self-lubricating bearings, The VIIIPLUS Company applies its deep knowledge of metallurgy, tribology and cast systems to improve the reliability and efficiency of equipment, machinery and energy worldwide.

Small Business Bearings Solutions & Services， Maintenance-free

The processing for CNC parts processing

In order to ensure the machining accuracy, it is best to carry out the rough and finish machining separately. Because rough machining, cutting quantity is big, the workpiece by cutting force, clamping force is big, calorific value is much, and the machining surface has more obvious machining hardening phenomenon, the workpiece internal existence is larger internal stress, if the thick, rough machining continues continuously, the precision of the parts after finishing will be due to the stress distribution and quickly lost. For some machining precision requirements of high parts. After rough machining and before finishing machining, low temperature annealing or aging process should be organized to eliminate the internal stress.

Choose equipment reasonably. Machine parts processing plant rough processing is mainly to cut off most of the processing margin, does not require a higher processing accuracy, so the rough processing should be in the power is larger, the precision is not too high on the machine tool, the finishing process is required to use more high-precision machine tool processing. Coarse and fine machining are processed on different machine tools, which can not only give full play to the equipment capacity, but also extend the service life of fine machine tools.

In the machining process route, heat treatment process is often organized. In order to improve the machining performance of metal, such as annealing, normalizing, tempering, etc., the general structure is carried out before machining. In order to eliminate the internal stress, such as aging treatment, tempering treatment, etc., the general organization after the rough machining, finishing before. In order to improve the mechanical properties of parts, such as carburizing, quenching, tempering, etc., the general organization is carried out after machining. If there is a large deformation after the heat treatment, the final machining process must be organized.

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